Cita APA (7th ed.)

Davis, M. L., & Cornwell, D. A. (1991). Introduction to environmental engineering (2a. ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Davis, Mackenzie L., i David A. Cornwell. Introduction to Environmental Engineering. 2a. ed. Nueva York: McGraw-Hill, 1991.

Cita MLA (9th ed.)

Davis, Mackenzie L., i David A. Cornwell. Introduction to Environmental Engineering. 2a. ed. McGraw-Hill, 1991.